Gijs Jansen Gijs Jansen, PsyD, is a psychologist, author, and internationally recognized trainer in acceptance and commitment therapy (ACT). Dr. Jansen has trained thousands of mental health professionals and worked with clients from all walks of life. A former faculty member at Radboud University Nijmegen, he has contributed extensively to the development of ACT in the Netherlands. Author's Website

All titles by Gijs Jansen:

Making ACT Happen: How to Use Acceptance and Commitment Therapy in Clinical PracticeGijs Jansen
Foreword by Steven C. Hayes

Paperback
April 20, 2026Apr 2026, $45.00

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Hardcover
May 4, 2026May 2026, $65.00

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e-Book
April 9, 2026Apr 2026, $45.00

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Print + e-Book
Save 40%! $90.00 $54.00

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